among the attendees the husband of shooting survivor gabrielle giffords. tracie potts joins us live on capitol hill with details about the emotional few days. good morning. >> could be an emotional hearing. now this morning we are hearing not only will mark kelly testify but his wife gabrielle giffords is supposed to make a surprise visit and testimony as well. her husband mark kelly, we understand, will be talking about the university server shall background checks and whether or not it's a good idea. he backs it. they have now started this organization that's essentially a lobby effort for gun control and as a gun owner himself, mark kelly said he thinks the nra did a great job when it comes to safety. he thinks they are on the wrong side of the fence when it comes to a weapons ban. we'll hear from the nra ceo wayne la pierre that studies have shown crime didn't go down. he'll say according to his prepared testimony that university server shall background checks target the wrong people. you want to catch a the criminals and they get around the background